The 7868EH is a compact version of the 7591 valve. Commonly found in jukeboxes, hi-fi amps, and some Peavey guitar amps. If you need a matched quad, just order two sets. The price shown is for a matched pair.
This 7868EH pair is pre-matched for us at the factory, and we further test each valve by hand in-house on our state-of-the-art equipment to ensure maximum quality. We issue a test certificate with the matching results.
Includes a 180 day warranty.
Note that some pairs come in white boxes due to the factory running out of printed boxes. These are genuine from the factory units and are brand new. This is a specialist valve, so they are not in continuous production.
These valves have a B9D base, and so look a bit like an ECC83 on steroids.
This valve also works as a replacement for the now obsolete Brimar EL506. First produced in 1966, the Brimar EL506 appeared in many Selmer amps. However, the market didn’t widely adopt the EL506, and it went out of production. We’ve not found any NOS EL506 valves here in the UK, though there appear to be some suspiciously fake looking NOS available in the Far East.
The original 7591 valve came out in 1959 as a high-power valve that is an “amp designer’s dream,” as it is so easy to work with. As a result, it found its way into many home audio products during the 1960s. Some companies using 7868s are Fisher and H. Scott in their home audio equipment. You can also find them in some Peavey guitar amps. The 7868 is the updated smaller package variant of the 7591.
It is extremely important to set the bias correctly on these high-power valves to avoid diminishing their tone and shortening their service life.
Note: Valves use high voltages and these voltages are dangerous. The amp can retain these high voltages even after being switched off. If you are not sure of fitting them, please seek the services of qualified personnel.
